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Is it possible to have a deadlock involving only a single process?
Wiki User
∙ 12y ago
no
deadlock can only occur when processes access shared memory and the following conditions must be met:
-mutual exclusion
-hold and wait
-no preemption
-circular wait.
As soon as any of the 4 conditions fail,no deadlock.
For example there cannot be circular wait for the case of one process.Who is waiting for who?The single process have access to all the available ressources.
Wiki User
∙ 12y ago
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Is there possible deadlock in single process?
ans :NO because as we know that for deadlock must have follow one of the given condition. 1. mutual exclusion:here is only single process so that no case of nonsharable resource . 2. hold and wait: here is only single process so that no wait for another process to realease the requested resource. 3. no preemption: single process so that no need to taken force fully. 4.circular wait: in single process no contain the cycle. so that single process never enter into the deadlock state Of course, all of the above can be true if the single process has multiple threads of execution. Those threads can be deadlocked just like processes
Can deadlock be resolved without selecting a victim?
Yes, deadlock can be resolved by avoiding the conditions that lead to it, breaking the circular wait, or using deadlock prevention techniques like resource allocation graph, timeouts, or priority-based techniques. In some cases, deadlock can also be prevented by ensuring a single thread holds all resources simultaneously or by using a deadlock detection algorithm to preemptively handle it.
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